tonight, less than a month after the massacre at sandy hook elementary, gunfire rips through another school. more violence. even as leaders in washington debate america's gun laws. >> we understand that it's a complicated issue. >> shepard: gun rights groups, including the nra and retailers including wal-mart, meeting with vice president biden. the focus? how to prevent mass murders like the one in new town, connecticut. >> even if what we do saves one life, it makes sense. >> shepard: tonight, what came out of the sitdown and what sort of changes gun owners could soon see. the flu outbreak worsens. >> i'm declaring a public health emergency in the city of boston. >> shepard: children are already dying. >> it scared me and i didn't know what to do. >> shepard: now, word that some clinics are running out of vaccines. plus,. >> congratulations to all the nominees. >> shepard: the oscar nominations are out. >> woo! >> shepard: tonight, the surprises and the disappointment. and how this year's academy awards already setting records. but, first from fox this thursday night, it has happene